Chen, Mei NungMei NungChenKe, Chun YaoChun YaoKeNyayachavadi, AudithyaAudithyaNyayachavadiZhao, HaoyuHaoyuZhaoOcheje, Michael U.Michael U.OchejeMooney, MadisonMadisonMooneyLi, Yen TingYen TingLiGu, XiaodanXiaodanGuGUEY-SHENG LIOURondeau-Gagné, SimonSimonRondeau-GagnéChiu, Yu ChengYu ChengChiu2023-12-182023-12-182023-11-2219448244https://scholars.lib.ntu.edu.tw/handle/123456789/637912The optimization of field-effect mobility in polymer field-effect transistors (FETs) is a critical parameter for advancing organic electronics. Today, many challenges still persist in understanding the roles of the design and processing of semiconducting polymers toward electronic performance. To address this, a facile approach to solution processing using blends of PDPP-TVT and PTPA-3CN is developed, resulting in a 3.5-fold increase in hole mobility and retained stability in electrical performance over 3 cm2 V-1 s-1 after 20 weeks. The amorphous D-A conjugated structure and strong intramolecular polarity of PTPA-3CN are identified as major contributors to the observed improvements in mobility. Additionally, the composite analysis by X-ray photoelectron spectroscopy (XPS) and the flash differential scanning calorimetry (DSC) technique showed a uniform distribution and was well mixed in binary polymer systems. This mobility enhancement technique has also been successfully applied to other polymer semiconductor systems, offering a new design strategy for blending-type organic transistor systems. This blending methodology holds great promise for the practical applications of OFETs.enconjugated polymer | increasing mobility | organic field-effect transistor | organic semiconductor | semiconductor blending systemjournal article10.1021/acsami.3c10499379067002-s2.0-85178387621https://api.elsevier.com/content/abstract/scopus_id/85178387621